|
A 74 year-old woman presented with right sided headaches and a neglect syndrome. |
| Meningioma (Tentorial). (Top
Left) T1-weighted axial MRI; (Top Right) T1-weighted with gadolinium
axial MRI; (Bottom Left) Flair axial MRI; (Bottom Right) T1-weighted
with gadolinium coronal MRI. Note the large, well demarcated
mass that is attached to the tentorium. The mass is isointense on T1-weighted
images but strongly
enhances with gadolinium (upper right). On the Flair image, note the
prominent surrounding vasogenic edema and mass effect. This location is typical
of a meningioma. Meningiomas are common tumors that arise from the meninges and can occur within the spinal canal as well as intracranially. They are typically benign histologically, and can be surgically resected if they are in an accessible location. They are more common in women than men, and account for approximately 20% of all primary brain tumors. Similar to low grade gliomas, they grow very slowly. They may result in seizures, focal neurological signs, or both, depending on their location. Some of the more common locations for meningiomas include: ● Parasagittal (attached to the falx) |
Revised
11/30/06.
Copyrighted 2006. David C Preston